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2018 Vol.27, Issue 2
Growth and Rooting Rate of ‘Maehyang’ Strawberry as Affected by Irrigation Method on Cutting Propagation in Summer Season

하절기 ‘매향’ 딸기의 삽목 번식 시 관수방법에 따른 생육 및 발근율

Hyeon Min Kim1
,
Hye Min Kim1
,
Hyeon Woo Jeong1
,
Hye Ri Lee1
,
Byoung Ryong Jeong1234
,
Nam Jun Kang1234
,
Seung Jae Hwang1234*
김 현민1
,
김 혜민1
,
정 현우1
,
이 혜리1
,
정 병룡1234
,
강 남준1234
,
황 승재1234*
1Division of Applied Life Science, Graduate School of Gyeongsang National University, Jinju 52828, Korea
2Department of Agricultural Plant Science, College of Agriculture & Life Sciences, Gyeongsang National University, Jinju 52828, Korea
3Institute of Agriculture & Life Sciences, Gyeongsang National University, Jinju 52828, Korea
4Reserch Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea
1경상대학교 대학원 응용생명과학부
2경상대학교 농업생명과학대학 농업식물과학과
3경상대학교 농업생명과학연구원
4경상대학교 생명과학연구원
*Corresponding author: hsj@gnu.ac.kr
30 April 2018. pp. 103-110
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Abstract

This study was conducted to investigate the optimum irrigation method for propagation of cutting strawberry (Fragaria × ananassa Duch. cv. Maehyang) plantlet in summer season. The cutting strawberry plantlets were planted in 24-cell tray (60 × 34 × 10 cm) filled with commercial mixed medium (Tosilee) and placed in semi closedtype small plastic tunnel. Each semi closed-type small plastic tunnel was treated as follows; control (non-treatment), over head irrigation (twice a day), capillary mats irrigation (twice a day), or fog irrigation (30 minutes turn on and 10 minutes off from 8:00 to 18:00). The strawberry plantlets were rooted during 8 days in the semi closed-type small plastic tunnel, and then plastic film was removed. Growth parameters, such as plant height, root length, number of primary roots, petiole length, leaf length, leaf width, crown diameter, SPAD, leaf area, fresh and dry weights of the shoot and root, were measured at 61 days after cutting. Relative humidity in tunnel was high in the order by fog irrigation, over head irrigation, capillary mats, and the control as 72.5, 56.3, 45.8, and 29% on average, respectively. However, the air temperature was similar in all treatments. On the 4 and 8 days, the rooting rate of strawberry plantlet was significantly higher in the over head irrigation and fog irrigation treatments. Plant height, petiole length, crown diameter, and leaf area were highest in the over head irrigation and fog irrigation treatments. In addition, fresh and dry weights of shoot were greater in over head irrigation and fog irrigation treatments than the others. Dry weight of root was differed significantly heaviest in the fog irrigation treatment. However, root length, no. of primary roots, SPAD value, and fresh weight of root were not significantly different in all treatments. These results indicated that growth and rooting for propagation of cutting strawberry plantlet ‘Maehyang’ were best achievement in the over head irrigation and fog irrigation treatments.

Keywords
crown diameter
fog irrigation
Fragaria × ananassa
over head irrigation
relative humidity

본 연구는 하절기 ‘매향’ 딸기 자묘의 삽목 번식에 적 절한 관수 방법을 구명하기 위해 수행되었다. 딸기 자묘 의 삽수는 24구 딸기 전용 포트(24구, 60 × 34 × 10cm) 에 상업용 혼합 상토(Tosilee)를 이용하여 삽목하고, 반 밀폐형 소형비닐터널에 위치시켰다. 각각의 반 밀폐형 소형터널의 처리는 다음과 같이 처리했다; 대조구(무처 리), 두상관수(하루 두 번), 매트관수(하루 두 번), 그리 고 안개관수(8:00시부터 18:00시까지 30분 온/오프 설정). 딸기 자묘는 반 밀폐형 소형터널 내에서 8일 동안 발근 을 하였고, 그 이후 플라스틱 필름을 제거 하였다. 삽목 후 61일째에 초장, 근장, 1차 근수, 엽병장, 엽장, 엽폭, 크라운 직경, 엽록소 값, 엽면적, 지상부와 지하부의 생 체중 및 건물중을 측정하였다. 터널 내의 하루 평균 상 대습도는 각각 안개관수, 두상관수, 매트관수, 대조구 순 으로 72.5, 56.3, 45.8, 그리고 29%를 나타냈다. 그러나 공기온도는 모든 처리에서 유사하였다. 딸기 자묘의 4일 째와 8일째 발근율은 두상관수와 안개관수 처리에서 유 의적으로 높았다. 초장, 엽병장, 크라운 직경, 엽면적은 두상관수와 안개관수 처리에서 높은 값을 나타냈다. 게 다가 지상부의 생체중 및 건물중은 다른 처리에 비해 두상관수와 안개관수 처리에서 무거웠다. 지하부의 건물 중은 안개관수 처리에서 유의적으로 무거웠다. 하지만 근장, 1차 근수, 엽록소 값, 지하부의 생체중은 모든 처 리구에서 유의적인 차이를 나타내지 않았다. 결과적으로, ‘매향’ 딸기의 삽목 번식 시 생육과 발근율은 두상관수 와 안개관수 처리에서 가장 효과적인 것으로 나타났다.

키워드
두상관수
상대습도
안개관수
크라운 직경
Fragaria × ananassa
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 27
  • No :2
  • Pages :103-110
  • Received Date : 2018-01-03
  • Revised Date : 2018-01-31
  • Accepted Date : 2018-02-12
  • DOI :https://doi.org/10.12791/KSBEC.2018.27.2.103
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